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<tt>Hi Ano,<br>
<br>
But the prepaid example already has an pre-call announcement - so
what are you trying to change ?<br>
<br>
Regards,<br>
</tt>
<pre class="moz-signature" cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a class="moz-txt-link-freetext" href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a>
OpenSIPS Bootcamp 2018
<a class="moz-txt-link-freetext" href="http://opensips.org/training/OpenSIPS_Bootcamp_2018/">http://opensips.org/training/OpenSIPS_Bootcamp_2018/</a>
</pre>
<div class="moz-cite-prefix">On 10/05/2018 09:32 AM, Ano Nemo wrote:<br>
</div>
<blockquote type="cite"
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<div>I am trying to implement pre-alerting
announcement by modifying the prepaid B2B UA
scenario.</div>
<div><br>
</div>
<div>If I am not mistaken the default prepaid
B2B UA scenario looks as below:</div>
<div>
<div><br>
</div>
<div><font face="monospace, monospace"><br>
</font></div>
<div><font face="monospace, monospace"> A
Party OpenSIPS
MS B Party</font></div>
<div><font face="monospace, monospace">1.
----Dialog1:INV+SDP(offer)---></font></div>
<div><font face="monospace, monospace">2.
----Dialog2:INV+SDP(offer)----></font></div>
<div><font face="monospace, monospace">3.
<----Dialog2:200+SDP(answer)--- </font></div>
<div><font face="monospace, monospace">-------------------------------
Bridging
-------------------------------------</font></div>
<div><font face="monospace, monospace">4.
<----Dialog1:200+SDP(answer)--- </font></div>
<div><font face="monospace, monospace">5.
----Dialog1:ACK---------------></font></div>
<div><font face="monospace, monospace">6.
----Dialog1:ACK--------------> </font></div>
<div><font face="monospace, monospace">-------------------------------
Announcement
---------------------------------</font></div>
<div><font face="monospace, monospace">7.
<----Dialog2:BYE--------------- </font></div>
<div><font face="monospace, monospace">8.
-------------------Dialog3:INV+SDP(offer)--></font></div>
<div><font face="monospace, monospace">9.
<------------------Dialog3:180
-------------</font></div>
<div><font face="monospace, monospace">10
<------------------Dialog3:200
-------------</font></div>
<div><font face="monospace, monospace">11
-------------------ACK--------------------> </font></div>
<div><font face="monospace, monospace">-------------------------------
Bridging
-------------------------------------</font></div>
</div>
<div><br>
</div>
<div><br>
</div>
<div>I am having problems with this behavior
because in the prepaid scenario, the opensips
B2B UA will create a leg to B party only after
it has received a BYE from the MS. This means
that there has to be a 200 OK before that
which needs to reach the A party and establish
media.</div>
<div>The behavior I am aiming for is for the MS
to deliver an provisional response with SDP
(183) to A Party and play the announcement.
However, after an 183, I cannot terminate the
call from the MS with a BYE and also, I do not
want to generate a 200 OK. But I could
generate an error on the MS (say an 4xx
error).</div>
<div>So, the question is, can the scenario xml
rules be formulated to make the B2B UA act on
negative response? Is the below possible?</div>
<div><br>
</div>
<div>
<pre style="white-space:pre-wrap;font-size:0.9em;font-family:"Lucida Console","Andale Mono","Courier New",Courier;margin-top:0px;margin-bottom:0px"><span style="color:rgb(102,102,0)"><</span><span style="color:rgb(0,0,136)">rules</span><span style="color:rgb(102,102,0)">></span><span style="color:rgb(0,0,0)">
</span></pre>
<pre style="white-space:pre-wrap;font-size:0.9em;font-family:"Lucida Console","Andale Mono","Courier New",Courier;margin-top:0px;margin-bottom:0px"><span style="color:rgb(0,0,0)"> </span><span style="color:rgb(102,102,0)"><</span><span style="color:rgb(0,0,136)">reply</span><span style="color:rgb(102,102,0)">></span><span style="color:rgb(0,0,0)">
</span><span style="color:rgb(102,102,0)"><</span><font color="#000088">negative</font><span style="color:rgb(102,102,0)">> or</span> <<font color="#000088">410</font><span style="font-size:0.9em;color:rgb(102,102,0)">></span><span style="color:rgb(102,102,0)">
</span>
<span style="color:rgb(0,0,0)"> </span><span style="color:rgb(102,102,0)"><</span><span style="color:rgb(0,0,136)">rule</span><span style="color:rgb(0,0,0)"> </span><span style="color:rgb(102,0,102)">id</span><span style="color:rgb(102,102,0)">=</span><span style="color:rgb(0,0,0)"> ”</span><span style="color:rgb(102,0,102)">1</span><span style="color:rgb(0,0,0)">”</span><span style="color:rgb(102,102,0)">></span><span style="color:rgb(0,0,0)">
...
</span><span style="color:rgb(102,102,0)"></</span><span style="color:rgb(0,0,136)">rule</span><span style="color:rgb(102,102,0)">></span><span style="color:rgb(0,0,0)">
</span><pre style="white-space:pre-wrap;font-size:0.9em;font-family:"Lucida Console","Andale Mono","Courier New",Courier;margin-top:0px;margin-bottom:0px"><span style="color:rgb(0,0,0)"> </span><span style="color:rgb(102,102,0)"></</span><font color="#000088">negative</font><span style="color:rgb(102,102,0)">> or</span> </<font color="#000088">410</font><span style="font-size:0.9em;color:rgb(102,102,0)">></span></pre><span style="color:rgb(0,0,0)"> </span><span style="color:rgb(102,102,0)"></</span><span style="color:rgb(0,0,136)">reply</span><span style="color:rgb(102,102,0)">></span><span style="color:rgb(0,0,0)">
</span><span style="color:rgb(102,102,0)"></</span><span style="color:rgb(0,0,136)">rules</span><span style="color:rgb(102,102,0)">></span></pre>
</div>
<div><br>
</div>
<div>If not, is there any other way to do this?</div>
<div><br>
</div>
<div>Regards,</div>
<div>Ano</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
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